[clang] [clang][dataflow] Fix u8 string error with C++20. (PR #84302)

[via cfe-commits]

https://github.com/martinboehme created https://github.com/llvm/llvm-project/pull/84302

See also discussion on https://github.com/llvm/llvm-project/pull/84291.


>From 66ba3d492bc09b1244d1b0abdee58e1015a19974 Mon Sep 17 00:00:00 2001
From: Martin Braenne <mboehme at google.com>
Date: Thu, 7 Mar 2024 10:50:57 +0000
Subject: [PATCH] [clang][dataflow] Fix u8 string error with C++20.

See also discussion on https://github.com/llvm/llvm-project/pull/84291.
---
 clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp b/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp
index ff4e18de2c70f1..f2753d962f23a0 100644
--- a/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp
+++ b/clang/lib/Analysis/FlowSensitive/HTMLLogger.cpp
@@ -500,7 +500,7 @@ class HTMLLogger : public Logger {
     for (unsigned I = 0; I < CFG.getNumBlockIDs(); ++I) {
       std::string Name = blockID(I);
       // Rightwards arrow, vertical line
-      char ConvergenceMarker[] = u8"\\n\u2192\u007c";
+      const char *ConvergenceMarker = (const char*)u8"\\n\u2192\u007c";
       if (BlockConverged[I])
         Name += ConvergenceMarker;
       GraphS << "  " << blockID(I) << " [id=" << blockID(I) << " label=\""